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147433940 = 2257371697
BaseRepresentation
bin10001100100110…
…10100111010100
3101021102102100022
420302122213110
5300220341230
622344004312
73440111363
oct1062324724
9337372308
10147433940
117624a335
1241460698
1324710c24
141581b7da
15ce241e5
hex8c9a9d4

147433940 has 12 divisors (see below), whose sum is σ = 309611316. Its totient is φ = 58973568.

The previous prime is 147433921. The next prime is 147433963. The reversal of 147433940 is 49334741.

It can be written as a sum of positive squares in 2 ways, for example, as 53963716 + 93470224 = 7346^2 + 9668^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 147433940.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3685829 + ... + 3685868.

It is an arithmetic number, because the mean of its divisors is an integer number (25800943).

Almost surely, 2147433940 is an apocalyptic number.

147433940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

147433940 is an abundant number, since it is smaller than the sum of its proper divisors (162177376).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

147433940 is a wasteful number, since it uses less digits than its factorization.

147433940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7371706 (or 7371704 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 147433940 is about 12142.2378497541. The cubic root of 147433940 is about 528.2820128368.

The spelling of 147433940 in words is "one hundred forty-seven million, four hundred thirty-three thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 7371697 14743394 29486788 36858485 73716970 147433940